Optical device

Optical waveguides – Temporal optical modulation within an optical waveguide – Electro-optic

Reexamination Certificate

Rate now

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Details

C385S001000, C385S014000

Reexamination Certificate

active

11089895

ABSTRACT:
The present invention provides a highly-integrated and compact optical element and further provides an optical element having various functions such as lower driving voltage, chirping suppression and polarization-independency.The optical element comprising a substrate1consisting of a material having an electrooptic effect, top optical waveguides2-1an2-2formed on the top face of said substrate, bottom optical waveguides formed on the bottom face of said substrate, a top modulating electrode for controlling the phase of a light wave being propagated through said top optical waveguide, and a bottom modulating electrode for controlling the phase of a light wave being propagated through said bottom optical waveguide, is characterized in that at least one side edge of said substrate comprises output and input of said optical waveguides formed on said top and bottom faces, and a turnback element is located adjacent to said one side edge to guide the light wave from said output to said input.

REFERENCES:
patent: 6760493 (2004-07-01), Pruneri et al.
patent: 6950218 (2005-09-01), Sugiyama et al.
patent: 6950579 (2005-09-01), Ahn et al.
patent: 2005/0213863 (2005-09-01), Sugiyama et al.
patent: 2003-202530 (1983-07-01), None
patent: 07-325276 (1995-12-01), None
patent: 2001-350046 (2001-12-01), None
Courjal et al., “LiNBO3Mach-Zehnder Modulator with Chirp Adjusted by Ferroelectric Domain Inversion,”IEEE Photonics Technology Letters, vol. 14, No. 11, Nov. 2002, pp. 1509-11.

LandOfFree

Say what you really think

Search LandOfFree.com for the USA inventors and patents. Rate them and share your experience with other people.

Rating

Optical device does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Optical device, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Optical device will most certainly appreciate the feedback.

Rate now

     

Profile ID: LFUS-PAI-O-3836374

  Search
All data on this website is collected from public sources. Our data reflects the most accurate information available at the time of publication.